CVE-2026-14535

The CVE affects Trail of Bits fickling up to version 0.1.11. The UnsafeImportsML analysis pass always calls AnalysisContext.shorten_code(node), populating shared AnalysisContext.reported_shortened_code. When MLAllowlist runs, it sees already_reported=True for every import and skips its allowlist ...

EUVD-2026-41676

In Trail of Bits fickling versions up to and including 0.1.11, the UnsafeImportsML analysis pass unconditionally calls AnalysisContext.shortencodenode on every import node it inspects, regardless of whether the import is flagged as unsafe. This call registers the shortened code representation in...

EUVD-2026-41675

Trail of Bits fickling versions up to and including 0.1.10 do not include the Python standard library modules posixsubprocess, site, and atexit in the UNSAFEIMPORTS denylist fickle.py. Because these modules are absent from the denylist, fickling's checksafety function returns LIKELYSAFE with zero...

CVE-2026-14534

The CVE-2026-14534 issue affects the Python package fickling, up to version 0.1.10. The root cause is that the UNSAFE_IMPORTS denylist omits three standard library modules — _posixsubprocess, site, and atexit — causing check_safety() to return LIKELY_SAFE and allowing pickle payloads to deseriali...

Incomplete List of Disallowed Inputs

Overview fickling is an A static analyzer and interpreter for Python pickle data Affected versions of this package are vulnerable to Incomplete List of Disallowed Inputs in the UNSAFEIMPORTS list. An attacker can execute arbitrary system commands by crafting a malicious pickle file that imports...

Fickling missing RCE-capable modules in UNSAFE_IMPORTS

Assessment The modules uuid, osxsupport and aixsupport were added to the blocklist of unsafe imports https://github.com/trailofbits/fickling/commit/ffac3479dbb97a7a1592d85991888562d34dd05b. Original report Summary fickling's UNSAFEIMPORTS blocklist is missing at least 3 stdlib modules that provid...

GHSA-5HWF-RC88-82XM Fickling missing RCE-capable modules in UNSAFE_IMPORTS

Assessment The modules uuid, osxsupport and aixsupport were added to the blocklist of unsafe imports https://github.com/trailofbits/fickling/commit/ffac3479dbb97a7a1592d85991888562d34dd05b. Original report Summary fickling's UNSAFEIMPORTS blocklist is missing at least 3 stdlib modules that provid...

GHSA-83PF-V6QQ-PWMR Fickling has a detection bypass via stdlib network-protocol constructors

Our assessment imtplib, imaplib, ftplib, poplib, telnetlib, and nntplib were added to the list of unsafe imports https://github.com/trailofbits/fickling/commit/6d20564d23acf14b42ec883908aed159be7b9ade. The UnusedVariables heuristic works as expected. Original report Summary Fickling's checksafety...

Fickling has a detection bypass via stdlib network-protocol constructors

Our assessment imtplib, imaplib, ftplib, poplib, telnetlib, and nntplib were added to the list of unsafe imports https://github.com/trailofbits/fickling/commit/6d20564d23acf14b42ec883908aed159be7b9ade. The UnusedVariables heuristic works as expected. Original report Summary Fickling's checksafety...

Improper Security Checks For Unsafe Imports

Fickling is vulnerable to improper security checks for unsafe imports. The vulnerability is due to incomplete validation in the unsafeimports method of the static analyzer, which fails to flag certain high-risk Python modules, allowing an attacker to craft malicious pickle files that bypass safet...

CVE-2026-22609

Fickling is a Python pickling decompiler and static analyzer. Prior to version 0.1.7, the unsafeimports method in Fickling's static analyzer fails to flag several high-risk Python modules that can be used for arbitrary code execution. Malicious pickles importing these modules will not be detected...

CVE-2026-22609 Fickling has Static Analysis Bypass via Incomplete Dangerous Module Blocklist

Fickling is a Python pickling decompiler and static analyzer. Prior to version 0.1.7, the unsafeimports method in Fickling's static analyzer fails to flag several high-risk Python modules that can be used for arbitrary code execution. Malicious pickles importing these modules will not be detected...

CVE-2026-22609 Fickling has Static Analysis Bypass via Incomplete Dangerous Module Blocklist

Fickling is a Python pickling decompiler and static analyzer. Prior to version 0.1.7, the unsafeimports method in Fickling's static analyzer fails to flag several high-risk Python modules that can be used for arbitrary code execution. Malicious pickles importing these modules will not be detected...

CVE-2026-22609

Affected software/issue: Fickling (Python pickling decompiler/static analyzer) prior to v0.1.7. Root cause: unsafe_imports() in the static analyzer fails to flag several high-risk modules, allowing malicious pickles to bypass safety checks. Impact (as stated): potential arbitrary code execution v...

PT-2026-2229

Name of the Vulnerable Software and Affected Versions Fickling versions prior to 0.1.7 Description Fickling is a Python pickling decompiler and static analyzer. Prior to version 0.1.7, the unsafe imports method within Fickling’s static analyzer does not identify several high-risk Python modules...

GHSA-Q5QQ-MVFM-J35X Fickling has Static Analysis Bypass via Incomplete Dangerous Module Blocklist

Fickling's assessment ctypes, importlib, runpy, code and multiprocessing were added the list of unsafe imports https://github.com/trailofbits/fickling/commit/9a2b3f89bd0598b528d62c10a64c1986fcb09f66, https://github.com/trailofbits/fickling/commit/eb299b453342f1931c787bcb3bc33f3a03a173f9,...

Deserialization of Untrusted Data

Overview fickling is an A static analyzer and interpreter for Python pickle data Affected versions of this package are vulnerable to Deserialization of Untrusted Data via the unsafeimports function. An attacker can execute arbitrary code by supplying a malicious pickle that imports dangerous...

GHSA-5HVC-6WX8-MVV4 Fickling vulnerable to use of ctypes and pydoc gadget chain to bypass detection

Fickling's assessment pydoc and ctypes were added to the list of unsafe imports https://github.com/trailofbits/fickling/commit/b793563e60a5e039c5837b09d7f4f6b92e6040d1. Original report Summary Both ctypes and pydoc modules arent explictly blocked. Even other existing pickle scanning tools like...

Fickling Blocklist Bypass: cProfile.run()

Fickling's assessment cProfile was added to the list of unsafe imports https://github.com/trailofbits/fickling/commit/dc8ae12966edee27a78fe05c5745171a2b138d43. Original report Description Summary Fickling versions up to and including 0.1.6 do not treat Python's cProfile module as unsafe. Because ...

GHSA-P523-JQ9W-64X9 Fickling Blocklist Bypass: cProfile.run()

Fickling's assessment cProfile was added to the list of unsafe imports https://github.com/trailofbits/fickling/commit/dc8ae12966edee27a78fe05c5745171a2b138d43. Original report Description Summary Fickling versions up to and including 0.1.6 do not treat Python's cProfile module as unsafe. Because ...